Thread: Coolant Hoses

Originally Posted by d2dave

Are silicon hosed that good. I had always thought they were, but some recent research has suggested otherwise.

Silicone isn't ideal for coolant, they do need to have a flurosilicone liner to seal them otherwise they bleed and some OAT coolants will attack them, (soften) so I'm selective.
[Edit] I've just read that flurosilicone liners are showing shortened life in use, too.

And yes, I prefer the blanking hose in silicone as it's tucked beneath and between the exhaust manifold and that round whirly thing that traps and rejects a bucket load of heat.

As for Roverlord, ditto, I just email Mario and Heather with a list of bits and they advise availability, put together a care parcel and send it off.
Great service

Originally Posted by onebob

I never look at his online shop - I make a parts request via email. Seldom can he not supply, like when I asked for a Starter Motor rebuild kit, or a Lt230 Transfer Case rebuild kit. But in the case of the more “commonly” sought after items like filters, thermostats, water pumps and hoses… never a problem

If you order by PM, you get an AULRO discount.

Originally Posted by trout1105

If you fit cheap hoses then I suggest that you hang onto the money you have saved by not getting the genuine hoses because you will most likely need it to help pay for the repairs to a cooked engine

I hear what you're saying, but I don't think that is necessarily 100% true, and I'll explain why.

First and foremost, I have had the experience of an engine being destroyed due to a failed coolant hose. This was back in 1986 in the era of 12 month warranties and I had a Mitsubishi Sigma, 18 months old at the time that had this little eeny-teeny hose buried inside the engine that heated the intake manifold rupture. Of course, like all good temperature gauges it registered nothing out of the ordinary as the coolant got pumped out. The first indication of a problem was when the engine seized. So much for that OEM hose.

Back on subject, what is sold as genuine OEM isn't necessarily the same component as was installed on the vehicle when it was on the assembly line. There are reasons for this. The most notable is that the car maker needs backups to their production suppliers, so will preference other suppliers to make OEM products. Another reason is that a spare parts supplier usually will make the OEM spares for a range of current and past models in small batches, whereas the supplier to manufacturing will be more geared towards turning out zillions of the same component for whatever the current model is. Obviously, one would expect that the car maker would keep tabs on the quality of the supply, but other than that, their involvement in the manufacturing process kind of ends there.

The other aspect is markup costs. I can give you a first hand example from a time when we actually built cars in Australia. A certain muffler company was given the OEM contract by a certain car maker to make mufflers as genuine spare parts. This muffler company was well known in aftermarket circles but had never been contracted to supply mufflers for the assembly line. Now there was nothing wrong with the mufflers that the company made for genuine spare parts, except that they were (roughly) about twice the price as the same muffler, grabbed from the same bin, and sold under their own brand to the customer.

Having said that, I'm a sucker for "genuine" factory spares to the point of paying $20 each for wheel nuts (thank you, tyre shop!) and even $100+ for 4l of premixed OEM coolant to match what's already in there but when it comes to "consumable" spares I'm happy enough to go with those sold by major suppliers. However, this is for our main vehicle which is worth considerably more than the old Disco and the reality is it can be hard to justify spending top dollar on a vehicle with a fairly low intrinsic value unless that vehicle is heavily depended upon.

Even so, I wouldn't advocate that cheap copies are the way to go, but I do think that anything that is branded and sold through reputable retailers in any kind of quantity are likely to be a safe enough bet.

Genuine parts regardless of who is spitting them out still use the updated design/tooling.

So at least you’re getting the revised component.

Originally Posted by rick130

Silicone isn't ideal for coolant, they do need to have a flurosilicone liner to seal them otherwise they bleed and some OAT coolants will attack them, (soften) so I'm selective.
[Edit] I've just read that flurosilicone liners are showing shortened life in use, too.

And yes, I prefer the blanking hose in silicone as it's tucked beneath and between the exhaust manifold and that round whirly thing that traps and rejects a bucket load of heat.

As for Roverlord, ditto, I just email Mario and Heather with a list of bits and they advise availability, put together a care parcel and send it off.
Great service

Yes, must be lined hoses. Then they seem to be quite good.

I use Samco, but pay for the privilege.

Originally Posted by Tombie

Yes, must be lined hoses. Then they seem to be quite good.

I use Samco, but pay for the privilege.

I've a mix of Samco and Pioneer, which is made in the UK too.

How much is that? 10%

Originally Posted by V8Ian

If you order by PM, you get an AULRO discount.

Originally Posted by Kaaaiju

How much is that? 10%

Enough to cover the postage.